Maj. Gen. Richard Clark, Eighth Air Force commander, addresses bomber Airmen during an all-call at Ellsworth Air Force Base, S.D., Jan. 20, 2016. To close the all-call, Clark showed a motivational video, reminding Airmen to stay committed to the Air Force core value of excellence in all we do and to their mission. (U.S. Air Force photo by Airman 1st Class Denise M. Nevins/Released)